单项选择题
1、 (     )
A．0    
B．1
C．2 
D．3


2、 （   ）
A．8    
B．16    
C．32 
D．64


3、 我国农业可持续发展所面临的问题是（　　）
A．人均耕地占有量逐年下降
B．东部有众多荒地未经开垦
C．农业综合生产能力高
D．农业部门结构中，种植业比重逐年下降


4、通读下面的短文，回答题。
     Bill and his family have been living in the same old building for eight years． The landlord (房东)also lives there,and usually all the tenants(房客) get along fairly well with one another． Recently,however, there has been a change in their relations．
     A nice, quiet old couple used to live there, too． The old lady would sometimes bring some smallcakes she made to Bill' s mother, who in return would give her some meat or help her with shopping．Unfortunately, the old lady died last month． As her husband couldn' t live alone, his grandson movedin．
     The grandson, a youth of about twenty, has become a problem to Bill' s family because he is sonoisy． Bill's family members were used to peace and quiet,but the youth likes to listen to his,radiolate at night． Sometimes his friends came for a visit, and they also made a lot of noise． Everyone inBill's family has been bothered by the new comer and getting angry．
     Bill's mother once politely asked the old man if he was able to sleep well at night, but itseemed that he didn' t understand what she meant and so never spoke to his grandson about it． If hedid,the grandson apparently didn' t listen, since things have not changed any． Everyone in Bill' sfamily agrees that something has to be done, but no one wants to hurt the old man' s feelings or causehim any problems．
     What do you think should be done?
Bill' s family got angry with their neighbor because__________．
A．the old lady died
B．a young man moved in
C．the grandson made a lot of noise
D．the young man could not live alone


5、下列词语中加点字的读音全都不相同的一组是（　　）
A．昏聩  馈赠  功亏一篑
B．恶心  恶劣  深恶痛绝
C．装载  记载  载歌载舞
D．贻误  怠慢  心旷神怡


6、 某元素的氢化物的分子式为RH₄，其氧化物中含氧的质量分数为53％．又知该元素的原子核内质子数等于中子数．则该元素位于周期表的（　　）
A．第二周期
B．ⅡA族
C．ⅣA族
D．ⅥA族


填空题
7、6x²-13x+6＜0的解集为______ 。

8、原线圈为1100匝的理想变压器接入220 V交流电路中，为使它的副线圈输出电压为10 V，则副线圈的匝数应为______匝．已知副线圈中电流为2．2 A，则原线圈中电流应为______A，该变压器的输入功率是______w．


简答题
9、已知抛物线经过点(2，3)，对称轴方程为x=1，且在x轴上截得的弦长为4，试求抛物线的解析式．


10、     假定你是中国文化知识大赛组委员会主席李华，写信祝贺参赛选手John Smith获得本次
      大赛一等奖，并通知其以下事项：
1．出席12月10日晚在北京友谊宾馆举行的庆祝晚会。2．赢得了免费中国10 Et游。
3．如果能够参加旅游，应将信中所附表格填好，并准备好护照(passport)。组委会将负责
其他相关事宜。
注音．词数为100左右
October 17th,2012
Dear Mr． John Smith,


                                                                                                                Sincerely yours,
                                                                                                                              Li Hua
                                                                                                                               Chair
                                                                                                             Committee of the Chinese Culture Contest

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